Physicochemical Transformations During Low-Temperature Synthesis of Zirconium Carbide

被引:2
|
作者
Shishkin, R. A. [1 ]
Kudyakova, V. S. [1 ]
Zhirenkina, N. V. [1 ]
机构
[1] Ural Fed Univ, Ekaterinburg, Russia
关键词
joint reduction; magnesiothermy; zircon carbide ZrC; sodium carbonate Na2CO3; low-temperature synthesis; SOLID-STATE REACTION; SODIUM;
D O I
10.1007/s11148-019-00317-x
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Joint reduction of zirconium dioxide and sodium carbonate to form zirconium carbide was studied. Magnesiothermic reduction of ZrO2 was shown to occur at 600 - 620 degrees C; Na2CO3, 590 - 610 degrees C. Thermodynamic calculations and x-ray phase analyses indicated the transformations occurring during the synthesis and the resulting reaction products. Use of graphite as the carbon source did not lead to ZrC formation at 700 - 900 degrees C, in contrast with Na2CO3.
引用
收藏
页码:105 / 108
页数:4
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